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Finding the Fourth Proportional to 195,557.88, 269,835.60 and 120,130.68

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Solution

The fourth proportional to 195,557.88, 269,835.60 and 120,130.68 is: 165,759.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,557.88 : 269,835.60 = 120,130.68 : x
  2. Step 2: Convert to fraction form
    195,557.88/269,835.60 = 120,130.68/x
  3. Step 3: Cross multiply
    195,557.88x = 269,835.60 × 120,130.68
  4. Step 4: Simplify right side
    195,557.88x = 32,415,534,116.21
  5. Step 5: Solve for x
    x = 32,415,534,116.21/195,557.88
  6. Step 6: Final answer
    x = 165,759.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.